Strap fastener



Jan, 2, 1940.

G. GILMORE STRAP FASTENER Filed May 22, 1939 Patented Jan. 2, 4194()UNITED STATI-:s

PATENT oFFi-'c" 2 Claims.

This invention relates to strap fasteners and the main object of myinvention is to provide a secure locking means for that end of astrapwhich is to be held and provides a durable,-

sion of a simple, eicient, practical clampingy means :which is alsoeconomical to `manufacture in quantity production.

Other objects land advantages of the invention will become apparent byreference to the accompanying drawing and the ensuing descriptionwherein like numerals are used to designate like parts and in which:

Fig. 1 is a top View of my inventionwith the strapend portion removedtherefrom, showing also in dotted position the top member of theinvention when swung on its hinge portion.

Fig. 2 is a cross-sectional View on the line 2 2 of 'Figure 1.

Fig. 3 is a cross-sectional View on the line 3--3 of Figure 1.

Fig. 4 is a cross-sectional view on the line 4-4 of Figure 1. l

Fig. 5y is a perspective view of my invention.

Referring to the drawing, my invention is generally designated by thenumeral 6, and comprises two locking members designated by the numeral'l and the numeral 8.

The lower member designated 'l is a flat piece of materiahmetal forexample, or any other suitable material, and is provided with a seriesof hinge portions designated by the numeral 9; in like manner the topmember is comprised of a metal plate member or other suitable materialwhich is provided with hinge portions designated I0.

These portions Il) and the hinge portions 9 cooperate and register so asto admit the retaining member designated by the numeral il to beinserted therethru and permit articulate motion between the member 'land the member 8.

The member 8 is provided with an elongated slotted opening designated bythe numeral I2,

the objectvof whchwill be hereinafter explained, and also a cut outrportion designated by the numeral i3, having an arcuate portiondesig-`nated by the numeral 23. J The lower member l is attached to the -strapf designated by the numeral i8 which may rbe 4. made up of one or'more'layers of material in order to insure strength and rigidity, themem- ,ber'l' being secured thereto by a number "or rivets designated bythe numeral 2l. The strap portion 22 is narrower than the portion i8 andis connected to the strap portion designated i8 by riveting or any othersuitable'manner or method; not indicated on the drawing. The strap.portion 22 is of suitable Width and thickness'totinto the slot l2 of themember 8. f The strap i8 is provided'with a hole designated by thenumeral 25, and the locking member 'l is provided with a hole 24 in.order to receive thescrew designated by thenurneral M, having anenlarged head portion designated by the numeral i 5. The body of thescrew i@ is adapted to t snugly within the arcuate recess designated 23.

- The open portion designated i3 having thev arcuate portion 23 isprovided in order to furnish clearance for the wing nut l1, thusenabling the upper locking member 8 to be swung open and to clear theshoulder portion of the wing nut Il; this makes it necessary merelyv toloosen the wing nut Il a few turns in order to be able to swing open thehinge v8 when it is desired to open the locking member and re move thestrap portion 22 therefrom. f If this opening were not provided it wouldbe necessary to remove the wing nut and screw completely before onewould be able to swing the hinge portion.

In operation, when it is desired to take the strap structure and gird itaround a certain body member and securely tighten this strap on' thatbody member, the locking member is first opened by loosening the wingnut Il suiciently to permit the upper locking member ii to swingv openon its pivot Il, then the strap portion 22 is laced thru the openingdesignated l2 in the manner shown in the drawing Figure 3. f

By virtue of the edges i9 and 2li of the opening I2, it can be seen thatthe upper portion of the strap is securely held in place especially bytwo surfaces namely the lower surface of the locking member 8 and theupper surface of the locking member l, thus clamping theportion 22securely in place and insuring against creepage" of any kind by theportion 22 vafter once clamped in the l locking member 6.

When the hinge member is in closed position as shown in Figure 5, thethumb or wing nut I'I is rotated so as to eiect a clamping action on thescrew bolt I4 and made to exert a locking pressure in engagement withthe screw bolt I4. 'Ihe screw bolt I4 is securely locked in place by thelock-nut I6 and held rigidly in place holding together at the same timethe locking member I with the strap vportion or member I8.

When it is desired to remove the entire strap structure from grippingengagement with a member to which it has been attached, it is necessaryto first loosen the wing-nut designated I'I by turning it a sufcientnumber of turns upwardly, this provides a suiiicient clearance for thetop member 3 to be swung open, and permits the strap 22 to be removedtherefrom thus loosening the holding or grip of the strap.

There is a particular advantage in having the member 8 swing in anarticulate manner with reference to the member 'I, for when it is placedin open position, and the strap 22 passed thru the opening I2 asindicated in Figure 3, then by swinging the upper member designated bythe numeral 8 downwardly into position, a definite and preliminarytightening of the strap takes place before the iinal clamping action ofthe pressure exerted by virtue of the wing-nut I'I being brought to bearon the top surface of the member 8 rigidly clamping and locking thestrap structure in gripping engagement.

My clamp member may be used also for clamping rope members and forjoining ends of cables, or where ropes or cables are spliced. Thespliced portion which is the Weakest portion may be clamped and heldsecurely in place by the top and bottom clamp members, thus tending tostrengthen the weaker or spliced portions.

Altho I have described in succinct terms the nature of my invention, itsobjects, and its aci-- vantages, and inasmuch as it may be susceptibleof various modifications, alterations, and improvements, I reserve theright to all such altera,-y

a screw bolt secured to the said bottom member,

a lock-nut securing the said screw bolt in fixed relationship with thesaid bottom member, the said top member provided with slotted meansadapted to hold the free endof said strap, and wingfnut means adapted toclamp the free end of said strap.

2. A device of the character described compris-v ing, in combination, astrap secured to a clamp, the said clamp comprised of two members, a topmember articulately secured to a bottom member, the said bottom memberrigidly secured to the said strap, a screw bolt secured to the saidbottom member, a lock-nut securing the said screw bolt rigidly in place,the said top member provided with slotted means adapted to hold the freeend of said strap, the said top member further provided with a notchedportion providing clearance for a Wing-nut when loosened, and alsoproviding an anchorage portion for engagement `with the said wing-nutwhen tightened, and

